/// <summary>
/// Decoded parameters to Map.
/// </summary>
/// <param name="input">the stream containing the encoded parameters</param>
/// <param name="map"></param>
/// <param name="charset"></param>
/// <param name="maxLength"></param>
public static void DecodeTo(Stream input, MultiMap <string> map, string charset, int maxLength)
{
if (charset == null || StringUtil.__ISO_8859_1.Equals(charset))
{
Decode88591To(input, map, maxLength);
return;
}
if (StringUtil.__UTF8.Equals(charset, StringComparison.OrdinalIgnoreCase))
{
DecodeUtf8To(input, map, maxLength);
return;
}
if (StringUtil.__UTF16.Equals(charset, StringComparison.OrdinalIgnoreCase)) // Should be all 2 byte encodings
{
DecodeUtf16To(input, map, maxLength);
return;
}
lock (map)
{
string key = null;
string value = null;
int c;
int digit = 0;
int digits = 0;
int totalLength = 0;
ByteArrayOutputStream2 output = new ByteArrayOutputStream2();
input.Position = 0;
long size = 0;
while ((c = input.ReadByte()) > 0)
{
switch ((char)c)
{
case '&':
size = output.Length;
value = size == 0 ? "" : Encoding.GetEncoding(charset).GetString(output.GetBuffer(), 0, (int)size);
output.Position = 0;
if (key != null)
{
map.Append(key, value);
}
else if (value != null && value.Length > 0)
{
map.Append(value, "");
}
key = null;
value = null;
break;
case '=':
if (key != null)
{
output.WriteByte(c);
break;
}
size = output.Length;
key = size == 0 ? "" : Encoding.GetEncoding(charset).GetString(output.GetBuffer(), 0, (int)size);
output.Position = 0;
break;
case '+':
output.WriteByte(' ');
break;
case '%':
digits = 2;
break;
default:
if (digits == 2)
{
digit = TypeUtil.ConvertHexDigit((byte)c);
digits = 1;
}
else if (digits == 1)
{
int v = (byte)(digit << 4) + TypeUtil.ConvertHexDigit((byte)c);
output.WriteByte(v);
digits = 0;
}
else
{
output.WriteByte((byte)c);
}
break;
}
totalLength++;
if (maxLength >= 0 && totalLength > maxLength)
{
throw new InvalidOperationException("Form too large");
}
}
size = output.Length;
if (key != null)
{
value = size == 0 ? "" : Encoding.GetEncoding(charset).GetString(output.GetBuffer(), 0, (int)size);
output.Position = 0;
map.Append(key, value);
}
else if (size > 0)
{
map.Append(Encoding.GetEncoding(charset).GetString(output.GetBuffer(), 0, (int)size), "");
}
}
}
/* -------------------------------------------------------------- */
/** Decoded parameters to Map.
* @param data the byte[] containing the encoded parameters
*/
public static void DecodeUtf8To(byte[] raw, int offset, int length, MultiMap <string> map, Utf8StringBuilder buffer)
{
lock (map)
{
string key = null;
string value = null;
// TODO cache of parameter names ???
int end = offset + length;
for (int i = offset; i < end; i++)
{
byte b = raw[i];
switch ((char)(0xff & b))
{
case '&':
value = buffer.Length == 0 ? "" : buffer.ToString();
buffer.Reset();
if (key != null)
{
map.Append(key, value);
}
else if (value != null && value.Length > 0)
{
map.Append(value, "");
}
key = null;
value = null;
break;
case '=':
if (key != null)
{
buffer.Append(b);
break;
}
key = buffer.ToString();
buffer.Reset();
break;
case '+':
buffer.Append((byte)' ');
break;
case '%':
if (i + 2 < end)
{
buffer.Append((byte)((TypeUtil.ConvertHexDigit(raw[++i]) << 4) + TypeUtil.ConvertHexDigit(raw[++i])));
}
break;
default:
buffer.Append(b);
break;
}
}
if (key != null)
{
value = buffer.Length == 0 ? "" : buffer.ToString();
buffer.Reset();
map.Append(key, value);
}
else if (buffer.Length > 0)
{
map.Append(buffer.ToString(), "");
}
}
}
/// <summary>
/// Decoded parameters to Map.
/// </summary>
/// <param name="input">InputSteam to read</param>
/// <param name="map">MultiMap to Add parameters to</param>
/// <param name="maxLength">maximum length of conent to read 0r -1 for no limit</param>
public static void DecodeUtf8To(Stream input, MultiMap <string> map, int maxLength)
{
lock (map)
{
Utf8StringBuilder buffer = new Utf8StringBuilder();
string key = null;
string value = null;
int b;
// TODO cache of parameter names ???
int totalLength = 0;
while ((b = input.ReadByte()) >= 0)
{
switch ((char)b)
{
case '&':
value = buffer.Length == 0 ? "" : buffer.ToString();
buffer.Reset();
if (key != null)
{
map.Append(key, value);
}
else if (value != null && value.Length > 0)
{
map.Append(value, "");
}
key = null;
value = null;
break;
case '=':
if (key != null)
{
buffer.Append((byte)b);
break;
}
key = buffer.ToString();
buffer.Reset();
break;
case '+':
buffer.Append((byte)' ');
break;
case '%':
int dh = input.ReadByte();
int dl = input.ReadByte();
if (dh < 0 || dl < 0)
{
break;
}
buffer.Append((byte)((TypeUtil.ConvertHexDigit((byte)dh) << 4) + TypeUtil.ConvertHexDigit((byte)dl)));
break;
default:
buffer.Append((byte)b);
break;
}
if (maxLength >= 0 && (++totalLength > maxLength))
{
throw new InvalidOperationException("Form too large");
}
}
if (key != null)
{
value = buffer.Length == 0 ? "" : buffer.ToString();
buffer.Reset();
map.Append(key, value);
}
else if (buffer.Length > 0)
{
map.Append(buffer.ToString(), "");
}
}
}
/// <summary>
/// Decoded parameters to Map.
/// </summary>
/// <param name="content">the string containing the encoded parameters</param>
/// <param name="map"></param>
/// <param name="charset"></param>
public static void DecodeTo(string content, MultiMap <string> map, string charset)
{
if (charset == null)
{
charset = StringUtil.__UTF8;
}
lock (map)
{
string key = null;
string value = null;
int mark = -1;
bool encoded = false;
for (int i = 0; i < content.Length; i++)
{
char c = content[i];
switch (c)
{
case '&':
int l = i - mark - 1;
value = l == 0 ? "" :
(encoded ? DecodeString(content, mark + 1, l, charset) : content.Substring(mark + 1, i - (mark + 1)));
mark = i;
encoded = false;
if (key != null)
{
map.Append(key, value);
}
else if (value != null && value.Length > 0)
{
map.Append(value, "");
}
key = null;
value = null;
break;
case '=':
if (key != null)
{
break;
}
key = encoded ? DecodeString(content, mark + 1, i - mark - 1, charset) : content.Substring(mark + 1, i - (mark + 1));
mark = i;
encoded = false;
break;
case '+':
encoded = true;
break;
case '%':
encoded = true;
break;
}
}
if (key != null)
{
int l = content.Length - mark - 1;
value = l == 0 ? "" : (encoded ? DecodeString(content, mark + 1, l, charset) : content.Substring(mark + 1));
map.Append(key, value);
}
else if (mark < content.Length)
{
key = encoded
? DecodeString(content, mark + 1, content.Length - mark - 1, charset)
: content.Substring(mark + 1);
map.Append(key, "");
}
}
}
